Commit 7cb52855 authored by Jerry (Fangzhi) Zuo's avatar Jerry (Fangzhi) Zuo Committed by Alex Deucher

drm/amd/display: Fix warning observed in mode change on Vega

[Why]
DOUBLE_BUFFER_EN bit is getting cleared before enable blanking.
That leads to CRTC_BLANK_DATA_EN is getting updated immediately.

[How]
Get DOUBLE_BUFFER_EN bit set, the same as DCE110.
Signed-off-by: default avatarJerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: default avatarCharlene Liu <Charlene.Liu@amd.com>
Acked-by: default avatarLeo Li <sunpeng.li@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 321f65a6
...@@ -772,7 +772,7 @@ void dce120_tg_set_blank(struct timing_generator *tg, ...@@ -772,7 +772,7 @@ void dce120_tg_set_blank(struct timing_generator *tg,
CRTC_REG_SET( CRTC_REG_SET(
CRTC0_CRTC_DOUBLE_BUFFER_CONTROL, CRTC0_CRTC_DOUBLE_BUFFER_CONTROL,
CRTC_BLANK_DATA_DOUBLE_BUFFER_EN, 0); CRTC_BLANK_DATA_DOUBLE_BUFFER_EN, 1);
if (enable_blanking) if (enable_blanking)
CRTC_REG_SET(CRTC0_CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN, 1); CRTC_REG_SET(CRTC0_CRTC_BLANK_CONTROL, CRTC_BLANK_DATA_EN, 1);
......
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